Highly-reliable sealed submarine sewage pump

Abstract

The invention belongs to the related technical field of a sewage pump, and discloses a highly-reliable sealed submarine sewage pump. The submarine sewage pump comprises an inlet shell, a stator steelsleeve, a rubber stator arranged on the inner wall of the stator steel sleeve by pouring, an outlet shell and a cutting tool, wherein two ends of the stator steel sleeve are connected to the inlet shell and the outlet shell respectively, and the cutting tool is arranged in the inlet shell; the inlet shell is trumpet-shaped, and diameter of the inlet shell is gradually reduced from the end, away from the outlet shell, of the inlet shell to the end, close to the outlet shell, of the inlet shell; an outlet is formed in the middle of the outlet shell and communicates with an external high-pressureenvironment; and the inlet shell, the rubber stator and the outlet shell communicate with one another. According to the highly-reliable sealed submarine sewage pump, noise and cost are reduced, and applicability and airtightness are better.

Description

technical field [0001] The invention belongs to the related technical field of sewage pumps, and more specifically relates to a highly reliable and sealed submarine sewage pump. Background technique [0002] Submarines have been valued by countries since World War I, and now they have become an important tool for countries to explore the ocean and a powerful marine military weapon. With the development of science and technology and the times, people's requirements for the safety, concealment and comfort of submarines have been greatly increased. [0003] The traditional submarine sewage discharge method is the gas blowing sewage discharge method, the working process is accompanied by loud noise, the generated air bubbles reduce the concealment of the submarine, the operation procedure is complicated, the reliability of the working process is low, and the noise and odor generated during the recovery of compressed gas will affect Disadvantages such as the living environment i...

AI Technical Summary

Problems solved by technology

For conventional single screw pumps, since the inlet is in the middle of the pump body, it is inconvenient to assemble a cutter to cut the fibrous matter in the medium, which may cause the fibrous matter to be entangled on the universal joint and affect its working performance. It is necessary to install a special cutting mechanism at the entrance, which not only increases the cost but also takes up space; the use of oil lubricated bearings requires regular refueling and maintenance, and the leakage of lubricating oil will pollute the environment; the use of mechanical seals will cause wear and failure after long-term operation, and cannot Completely seals against odors

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